Ventilator or chimney-cap.



WILLIAM E.

ESPERSON, OF NEW YORK, N. Y.

VENTILA'IOR OR CHIMNEY-CAP.

Specification of Letters Patent.

Application filed June 19,1907. Serial No. 379,694

Patented Sept. 10, 1907.

To all whom it may concern: I Be it known that I, WILLIAM E. ESPERSON, a citizen of the United States, and a resident of the borough of i Brooklyn, in the city and State of New York, (whose post-oflice address is 143 Glermont avenue, Brooklyn, New York,) have invented a new and useful Improvement in Ventilators or Chimney-Caps, of which the following is a specification.

The object of my invention is to provide a simple and inexpensive ventilator or chimney cap which will have a large outlet for the air or smoke; which will be free from clogging and in which the parts are so constructed and arranged that a free draft is obtained irrespective of the direction and velocity of the wind, and which offers no hindrance to a free outlet of the air or smoke in a calm.

A further object is to provide a very simple arrangement for preventing the access of rain or snow to the interior of the main flue.

A practical embodiment of my invention is represented in the accompanying drawings, in which Figure 1 represents the ventilator or chimney cap in perspective, Fig. 2 is a top plan view of the same, Fig. 3 is a section taken in the plane of the line AA of Fig. 2, looking in the direction of the arrows, and Fig. 4 is a section taken in the plane of the line BB of Fig. 1, looking in the direction of the arrows.

The ventilator or chimney cap comprises a main vertical flue 1 and supplemental vertical flues 2 and 3 arranged upon opposite sides of the main vertical flue 1. These supplemental vertical flues 2 and 3 are open at their tops and bottoms for permitting a free escape of the air or smoke from the main flue.

The main flue is herein shown as of rectangular form and is provided with openings 4 and 5 through its opposite side walls for bringing the interior of the main l flue into open communication with the interiors of the supplemental flues.

The top 6 for the main flue is provided with downward and outward extensions 7, 8, located above the openings 4, 5, and projecting into the interior of the supplemental flues 2,3. These extensions are used to deflect the wind and also to keep the rain from driving into the interior of the main flue. This top 6 is preferably arranged with downwardly and outwardly sloping sides for preventing the retention of ice or snow thereon and for causing the wind currents to aid in the increase of an upward draft in the main flue.

Flanges9, 10, are provided below the openings 4, 5, which flanges extend upwardly and inwardly into the interior of the main flue 1 and are provided with upwardly turned edges 11, 12, for preventing any rain which may be driven onto the tops of the flanges 9, 10,

also for directing any wind currents which may strike the said flanges, in a direction to increase the upward draft in the main flue. Flanges 13, 14, are located below the openings 4, 5, and extend downwardly and outwardly into the interior of the supplemental. flues 2, 3, which flanges form extensions of the upwardly and inwardly extended flanges 9, 10. These flanges serve to answer two purposes, via; to prevent water from dripping into the stack when it is raining and secondly to deflect the currents of air when the wind blows upward thus preventing the wind from blowing directly across the main flue. This deflection of the wind currents will create a suction tending to increase the upward draft in the main flue.

It is evident that the ventilator or chimney cap may be made of various materials and sizes and that the form may be modified Without departing from the spirit and scope of my invention; hence I do not wish to limit myself strictly to the construction herein set forth, but

What I claim is:

1. A ventilator or chimney cap comprising a main vertical flue having openings in its opposite side walls,v a top,

two oppositely arranged supplemental open ended vertical flues extending above and below said openings in the main flue and flanges extending upwardly and inwardly into the main flue below said openings.

2. A ventilator or chimney cap comprising a main vertical flue having openings in its opposite side walls, a top and two oppositely arranged supplemental open ended vertical flues extending above and below said openings in the main flue and flanges extended downwardly and outwardly from the main flue into the supplemental flues below the said openings.

3. A ventilator or chimney cap comprising a main vertical flue having openings in its opposite side walls, a top, two oppositely arranged supplemental open ended vertical flues extending above and below said openings in the main flue and flanges on the main flue below said openings extending upwardly into the main flue and upwardly and downwardly into the supplemental fines.

4. A ventilator or chimney cap comprising a main vertical flue having openings in its opposite side walls, a top, two oppositely arranged supplemental open ended vertical flues extending above and below said openings in the main flue, the said top having downward and outward extensions projecting into the supplemental flues above the openings in the main flue and flanges extending upwardly and inwardly into the main flue below said openings.

5. A ventilator or chimney cap comprising a main vertical flue having openings in its opposite side walls, a top, two oppositely arranged supplemental open ended vertical flues extending above and below said openings in the main flue, the said top having downward and outward extensions projecting into the supplemental 'flues above the openings in the main flue and flanges extending downwardly and outwardly from the main flue into the supplemental flues below said openings.

6. A ventilator or chimney cap comprising a main vertical flue having openings in its opposite side walls, a top,

flue and flanges on the main flue below said openings extended upwardly and inwardly into the main flue and provided with upwardly turned edges.

In testimony, that I claim the foregoing as my inven- 15 tion, I have signed my name in presence of two witnesses, this eighteenth day of June 1907.

\VILLIAM E. ESPERSON.

Witnesses F. Gnonon BARRY, Hnxm' THIEME. 

